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Slate TT Project

98.167.237.235
Posted on November 29, 2011 at 15:44:13
jimkjr
Audiophile

Posts: 41
Location: Mesa,AZ
Joined: August 30, 2005



I acquired a TT of my dreams,a Denon DP-80.Now all I had to do was manufacture a plinth that would do this TT justice,and make it sing.

So after considerable research,and corresponding with a number of plinth builders and material suppliers,this is my TT and it does indeed sing!I have never heard a TT that has such powerful bass,and yet articulates the mids and highs with such liquidity

Three layers of Baltic Birch topped with a 3/4" piece of slate,and 4 slate feet with 1/4" inserts to attach the footers.The rubber mat has been replaced with a Specialty designed Delrin mat and a soilid silver phono cable from Applied Fidelity,who also replaced and upgraded all of the caps as a precautionary measure,to prevent the danger of failure,as they are over 30 years old.

 

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RE: Slate TT Project, posted on November 29, 2011 at 15:50:07
cactuscowboy@bresnan.net
Audiophile

Posts: 7738
Location: Powell, Wyoming
Joined: July 23, 2007
 Oh yeah... it's a beautiful thing! Very impressive.

 

Sssssssmokin'! nt, posted on November 29, 2011 at 16:10:24
Rick W
 nt

 

That's a Beauty Alright!, posted on November 29, 2011 at 16:28:52
Meatface
Audiophile

Posts: 189
Joined: November 26, 2011
 Nice Job!

 

Tomahawk arm wand?, posted on November 29, 2011 at 16:48:38
olddude55
 I'm still using the carbon fiber wand.

 

Very Nice!, posted on November 29, 2011 at 18:59:58
John Elison
Audiophile

Posts: 24045
Location: Central Kentucky
Joined: December 20, 2000
Contributor
  Since: January 29, 2004
 It appears you have done an exceptional job. I like the air-bearing tonearm. Everything really looks great together. I'm sure it sounds great, too.

Best regards,
John Elison

 

Massive Accomplishment, posted on November 29, 2011 at 19:02:02
tubesforever
Manufacturer

Posts: 10505
Location: Great Basin
Joined: May 7, 2005



Jim, I know your project management background and I can tell it paid off with your project.

I put a picture of the DP 80 motor here for people to look at. Its one of the largest hystersis AC syncronous motors I have seen in a turntable.

The dark stained Baltic birch matches perfectly with the dark gray slate. Its classic and modern all at the same time which is something I really appreciate.

As for bass response, I doubt anyone other than myself here at the asylum has heard your system first hand. With the previous DP 6000 your bass response was ideal. If its better now then that's a further indication of just how important mass is to establish deep foundational bass lines.

For those wondering, Jim's system is one of the most natural sounding systems I have heard at any price. When we played Julie London it was like having her there in the listening room.

Jim, I am certain Barb is going to love Amanda singing The Rose.

I look forward to hearing the table next year.

"Help support our school's Music programs"


 

Yes, posted on November 29, 2011 at 19:21:13
tubesforever
Manufacturer

Posts: 10505
Location: Great Basin
Joined: May 7, 2005






I helped Jim settle an issue with his tonearm just after he purchased it. We ran the carbon fiber arm and it sounded really good.

When we ran the Tomahawk it was simply stunning. I am not sure if its the heavier mass or if its the point contact vs the knife edge.

This is simply the very best tonearm I have ever heard at any price. Its relatively inexpensive and it took us just 20 minutes to set up once we had the table and platter level.

Happy Holidays!


"Help support our school's Music programs"


 

Sweeeet!, posted on November 29, 2011 at 20:42:27
vinyl survivor
Audiophile

Posts: 1471
Location: Southeastern US
Joined: November 28, 2007
 Wish we all could hear it. After reading tubesforever comment, can you provide details about the rest of your system? Thanks!

 

RE: Slate TT Project, posted on November 29, 2011 at 21:14:56
mosin
Manufacturer

Posts: 10719
Joined: July 24, 2003
 It is a very good result. I'm sure you will appreciate the difference you hear with a non-compliant mat, too.

 

stunning., posted on November 30, 2011 at 00:26:18
mark111
Audiophile

Posts: 4699
Joined: April 12, 2002
 That's a fantastic job.
enjoy,
mark

 

Beautiful job and many different features went into this one., posted on November 30, 2011 at 01:13:08
hiatt@alaska.net
Audiophile

Posts: 7738
Joined: December 9, 2000
Contributor
  Since: November 1, 2005
 How did you decide to use a combination of wood with slate on the top, instead of just using several layers of slate? Is there a compliant layer between the slate and the birch, and what did you use to attach the slate to the wood? Sorry for all the questions. Bill.

 

I could use another wand., posted on November 30, 2011 at 02:36:03
olddude55
 The Tomahawk's been on my "to-do" list since Vic introduced it. It would be a priority if I could find fault with carbon fiber arm. But so far, I can't.

 

RE: Slate TT Project, posted on November 30, 2011 at 03:31:36
amioutaline?
 Best lookin' custom plnth job I've seen. The colors are so perfect together and the feets so purposeful and hi-tech looking.

When I first became interested in "Hi-Fi" back in the 70's, there was a dealer with a long wall shelf displaying the Denon line from bottom to top. I never missed a chance to ogle that display and hope my AR-XA could someday become an DP-80.

 

Couple questions..., posted on November 30, 2011 at 05:07:39
Salectric
Audiophile

Posts: 1367
Location: East Coast
Joined: February 23, 2003
 Great looking project!

I was wondering about the footers. Can you tell us the mfr and model? (I was guessing TTWeights but they don't look exactly like them.) And how are the footers attached to the slate feet?

Thanks!

 

RE: Slate TT Project, posted on November 30, 2011 at 06:55:40
majick47
Audiophile

Posts: 799
Location: Pembroke MA
Joined: June 27, 2006
 I'v been looking forward to seeing the completed project of the Denon DP-80 and by all appearances it's a masterpiece if there ever was one. As someone else remarked it's a beautiful and functional blend of old and new that has a timeless appearance utilizing a top notch motor unit, arm and plinth. Having read and communicated with a couple of AA members that have extensive experience with turntables like the DP-80 they stated that the key to superior sound is a massive/heavy plinth and Jims sure fits the bill and on top of that looks beautiful. It never stops amazing me the quality of the turntables that Jim Howard has created.

 

RE: Couple questions..., posted on November 30, 2011 at 07:38:00
jimkjr
Audiophile

Posts: 41
Location: Mesa,AZ
Joined: August 30, 2005
 The footers are model V2D-SS and are made by Simplyphsics

 

RE: Couple questions..., posted on November 30, 2011 at 07:49:02
Salectric
Audiophile

Posts: 1367
Location: East Coast
Joined: February 23, 2003
 Thanks, they look interesting and the price is reasonable. I'll order some and give them a try.

 

RE: Beautiful job and many different features went into this one., posted on November 30, 2011 at 07:52:57
jimkjr
Audiophile

Posts: 41
Location: Mesa,AZ
Joined: August 30, 2005
 First of all the slate is very inert,and I wanted that next to the motor,so it would initially dampen what little motor vbrations there are.There is nothing between the slate and the wood.The slate is not attached directly to the wood,but is secured with long screws thru the motor frame and thru the slate into the wood.Not securing the slate directly to the wood hypothetically leaves a thin layer of air between the slate and the wood thereby giving another layer of damping.

 

RE: Sweeeet!, posted on November 30, 2011 at 08:34:45
jimkjr
Audiophile

Posts: 41
Location: Mesa,AZ
Joined: August 30, 2005
 My system evolved over the past 30 yrs.,by reading and listening to various components at Hi-end shows and private rooms.So I acquired the various components piecemeal.The TT's are DP-80 with the Terminator tonearm and Monster Sigtma Genesis retipped by Soundsmith,DP-6000 ad Rek-O-Kut B12H,Camelot Roundtable(for digital occasionally)into a Aragon 18K Pre,Camelot Battery Phonostage,out to a Aragon 8008 amp, SVS Subs and Green Mountain Diamantes.All of these are connected with solid silver IC's by Applied Fidelity,and my own home grown speaker cables.These components together have a outstanding synergy which work with amazing results "MUSIC" far beyond what I expected.

 

RE: Slate TT Project, posted on November 30, 2011 at 08:47:22
jimkjr
Audiophile

Posts: 41
Location: Mesa,AZ
Joined: August 30, 2005
 For your info,Jim Howard did not Design this table,I did completely,,tho we did discuss plinths in general,as he was one of my sources.

 

RE: Sweeeet!, posted on November 30, 2011 at 08:53:24
krenzler
Audiophile

Posts: 1015
Location: Copenhagen
Joined: December 29, 2005
 Any particular reason why you chose the DP-80 over the DP-6000 as your main table? (if the DP-80 is your main table that is). I thought that the DP-6000 was kind of the pro version of DP-80 and even more desirable?

Thanks.

 

Must be very gratifying to ..., posted on November 30, 2011 at 09:03:54
reelsmith.
Audiophile

Posts: 13620
Location: CT
Joined: June 7, 2005
 ...complete a project that turned out so well.

Thanks for showing us.

Dean.


reelsmith's axiom: Its going to be used equipment when I sell it, so it may as well be used equipment when I buy it.


 

RE: Sweeeet!, posted on November 30, 2011 at 09:41:53
jimkjr
Audiophile

Posts: 41
Location: Mesa,AZ
Joined: August 30, 2005
 Its the other way around,the DP-80 is the so called pro version(Japanese only).It has a beefier motor,and a different 2 piece platter.Both of these
tables are supberb,and in my opinion better than any DD's out there.Plus I had a chance to get a D-80 without a plinth,and I have always wanted a project like building my own,so now I can look at and hear something of my own design as my showpiece!

 

RE: Slate TT Project, posted on November 30, 2011 at 10:18:01
Lew
Audiophile

Posts: 11011
Location: Bethesda, Maryland
Joined: December 11, 2000
 Very nice. I should post a photo of my DP80 in a 2-inch thick all-slate plinth that I made (or "had made" by a water-jet cutter once I supplied the slab). My subsequent experiments in building a plinth for my SP10 Mk3 have convinced me that adding the hardwood base to the slate top plate, such as you have done, is a good move. The two disparate materials work well together, IME. (For my Mk3, I have a 2.5-inch thick slate slab mounted over a 3-inch thick base or platform made of solid cherry and Baltic Birch. The wood base is firmly bolted to the slate slab. Then I used long metric screws to bolt the Mk3 chassis to the conjoined slate/wood "plinth".)

I have a pdf file for cutting a "Denon hole" into slate or whatever, using a computer-automated water-jet, if anyone is interested.

 

Jim, Have you accessed the bearing?, posted on November 30, 2011 at 10:25:30
Lew
Audiophile

Posts: 11011
Location: Bethesda, Maryland
Joined: December 11, 2000
 Despite my best search efforts, I have never been able to find any useful information about the DP80 bearing, save for the story that it does not need periodic or indeed any sort of cleaning and re-lubrication. The bearing in my DP80 is silent, but I still wonder whether there is something I should have done or should do to service it.

Although that does seem to be a physically large motor, it does not have the tremendous torque of an SP10 Mk2, let alone a Mk3, yet it gets the job done. (IMO, the DP80 is "as good as" an SP10 Mk2, any day of the week. I've owned both.) It was not part of the design philosophy of the Denon to achieve very high torque per se. (Don't know about the true monster motor of a DP100.)

 

Thanks for all the answers., posted on November 30, 2011 at 10:57:55
hiatt@alaska.net
Audiophile

Posts: 7738
Joined: December 9, 2000
Contributor
  Since: November 1, 2005
 I purchased some slate a few months back hoping to start a project, and I did notice that it wasn't going to be easy. It appears like I will have to use drills and saws along with water to cut into the slate. I was going to use three slabs of slate and did not consider a slate /wood combination. Maybe one slab of slate is enough to take advantage of its damping capability. That would certainly make the total project easier.

 

RE: Slate TT Project, posted on November 30, 2011 at 11:16:27
dancingseamonkey
Audiophile

Posts: 3582
Location: New Orleans, birth place of jazz.
Joined: May 1, 2006
Contributor
  Since: November 24, 2009
 Great job. I have been planning a slate plinth for my Empire 398 and I was going to laminate two pieces of slate together but now I will consider using a combination of wood and slate. Thanks for sharing.




"Trying is the first step towards failure."
Homer Simpson

 

RE: Sweeeet!, posted on November 30, 2011 at 12:36:21
krenzler
Audiophile

Posts: 1015
Location: Copenhagen
Joined: December 29, 2005
 My mistake for getting them mixed around.

"and in my opinion better than any DD's out there"

So you wouldn't swap it for a DP-100M? ;)

DP-80 a lovely deck indeed and I would love to own one myself.

 

RE: Sweeeet!, posted on November 30, 2011 at 13:18:07
jimkjr
Audiophile

Posts: 41
Location: Mesa,AZ
Joined: August 30, 2005
 I don't ever think about the DP-100 as they are so very rare,that is the only TT I would swap for indeed,even tho I have not heard one.

 

Incredible! I know how difficult it can be at times,, posted on November 30, 2011 at 15:12:41
Muzikmike
Reviewer

Posts: 12561
Location: SoCentral PA
Joined: December 19, 2007
 the smallest steps become the largest pain in the rump, i.e., "This should only take me about 1/2 hour."

It's those frustrations that in the end, make it all worthwhile. If it was easy, everyone would do it. When you look at what you have created, whether all by yourself or the choices you made at different points (Always a big thanks to Applied Fidelity and other people helping and guiding) it's a continual source of pride.

I hit so many snags while doing the mods to my HW19 that almost made me give up on the project, telling myself, "Never again." And here I am, going nuts about rewiring a tonearm.

One big step forward, two small steps back. Obviously perseverance on your part paid off in a big way...the table is beautiful. Add, as you and tubesy say (and I'd love to hear) that it sounds great and it just doesn't get much better than that.

Again, congratulations on a great job.
******************************

Music. Window or mirror?

 

Sexy !, posted on November 30, 2011 at 15:28:36
rocky raccoon
Audiophile

Posts: 553
Location: Cambridge
Joined: March 2, 2010
 I love the design of that Denon table. And slate is beautiful. Keep clear of oil !

rr

 

RE: Sexy !, posted on November 30, 2011 at 15:56:54
rosendds@frontiernet.net
Audiophile

Posts: 599
Location: North East
Joined: November 13, 2010
 What kind of LT tone arm is that?Beautiful TT!

 

RE: Sexy !, posted on November 30, 2011 at 16:07:36
jimkjr
Audiophile

Posts: 41
Location: Mesa,AZ
Joined: August 30, 2005
 Terminator Pro

 

RE: Incredible! I know how difficult it can be at times,, posted on November 30, 2011 at 16:21:20
jimkjr
Audiophile

Posts: 41
Location: Mesa,AZ
Joined: August 30, 2005
 Thanks Mike!One of these days I may get to meet you personally,and I told tubes to say Hi to you from me at your last BB,As I am an old Pennsylvanian from Charleroi.Hope you are feeling better.Jim

 

RE: Beautiful job and many different features went into this one., posted on November 30, 2011 at 16:48:16
Lew
Audiophile

Posts: 11011
Location: Bethesda, Maryland
Joined: December 11, 2000
 I don't think you want a "compliant" layer between the slate and the wood. It would constitute another interface past which the energy of vibration has to flow. At each interface there is a fraction of energy reflected as well as transmitted. This is why most re-plinthers of Garrards and Lencos do away with rubber escutcheons between the chassis and the plinth.

 

RE: Beautiful job and many different features went into this one., posted on November 30, 2011 at 17:38:56
jimkjr
Audiophile

Posts: 41
Location: Mesa,AZ
Joined: August 30, 2005
 Lew there is no compliant layer between the slate and wood

 

Not expert here, but I thought I read that a CLD plinth uses a compliant, posted on November 30, 2011 at 18:16:24
hiatt@alaska.net
Audiophile

Posts: 7738
Joined: December 9, 2000
Contributor
  Since: November 1, 2005
 layer between two different rigid masses, in order to let vibration energy escape as heat. However, as usual, what works versus theory is far more important. Please let me know if I am off base.

 

RE: Jim, Have you accessed the bearing?, posted on November 30, 2011 at 18:57:25
caligari
Audiophile

Posts: 415
Joined: March 20, 2008
Lew: "Despite my best search efforts, I have never been able to find any useful information about the DP80 bearing..."


Some pictures of the bearing in the DP-80 from the Japanese website amp8.com with many hi-rez pictures. Unfortunately, they didn't post a picture of the bearing. I remember the induction motors in models like DP3000 uses good bearings so the one in the DP80 should be just as good or better.
http://www.amp8.com/amp-etc/record/denon/dp-80.htm
http://www.amp8.com/amp-etc/record/denon/dp-80-3.htm




 

RE: Slate TT Project, posted on November 30, 2011 at 19:35:12
tubesforever
Manufacturer

Posts: 10505
Location: Great Basin
Joined: May 7, 2005
 I might have designed his mat, but I owe the idea entirely to your execution of BackStagePass.

A friend does the machine work on these pieces. He deserves some serious credit for making these as gorgeous as they sound.

I absolutely love the sonics. Thank you for blazing the trail.



"Help support our school's Music programs"


 

Here is a picture of a locking ring that keeps the hat and motor together, posted on November 30, 2011 at 19:46:44
tubesfoever


 
This light steel sleeve is pressed onto the hat and prevents the hat from pulling away from the motor assembly.

I tried to see if it could be easily removed. Removal would have destroyed its balance so I left it alone.

The bearing is considered a sealed design. There are no oiling provisions. You can hold the motor at any angle and zero oil escapes.

At speed it takes the platter nearly 3 minutes to come to a full stop when you pull the power. Its definitely an extremely low friction design and has zero wobble.

These motors are serious pieces. They are dramatically under-run. At full speed this motor has decent horsepower.

You would need both a heavier platter and run the motor closer to its design specs to achieve the kind of moment of inertia you can achieve with the SP 10 MKIII.

My ideal motor would be the SP-02 lathe motor. They are hard to come by ;-)

 

The pic..., posted on November 30, 2011 at 19:49:12
tubesforever
Manufacturer

Posts: 10505
Location: Great Basin
Joined: May 7, 2005



At last...

"Help support our school's Music programs"


 

Its certainly is a fine quality bearing., posted on November 30, 2011 at 19:53:35
tubesforever
Manufacturer

Posts: 10505
Location: Great Basin
Joined: May 7, 2005
 I just did not want to destroy that pressed on ring that holds the hat. The desire to get into that bearing well and inspect the thing was enormous.



"Help support our school's Music programs"


 

I like that...., posted on November 30, 2011 at 20:05:20
user510


 
Great style.
Kind of a tip of the hat toward Danish Modern but then with a considerable addition of laboratory instrument thrown in.

Looks great. I bet it sounds terrific as well.

congrats.

-Steve

 

RE: I like that...., posted on December 1, 2011 at 03:20:43
Davespectral
Audiophile

Posts: 3
Location: Burb of Chicago
Joined: September 2, 2005
 Beautiful! PLEASE throw in a pic of the Green Mountains!

 

Thanks. And another Denon tweak, posted on December 1, 2011 at 07:12:35
Lew
Audiophile

Posts: 11011
Location: Bethesda, Maryland
Joined: December 11, 2000
 You have satisfied my typical audiophool desire to "fix" something that is not broken (i.e., lubricating the bearing).

One tweak for all Denon DD's that I did on my DP80 is to dampen the back side of the decorative ring that surrounds the platter; it is a complex but essentially hollow part, and I believe it is a source of coloration. I inverted my DP80 chassis (platter removed, of course) and filled the hollow segments of the ring with hot liquefied beeswax, or whatever KLH used to pot the power supply for a KLH9 ESL. (I had two bad KLH 9 power supplies and so melted out the beeswax to find out what was amiss; thus I ended up with a large baking pan full of solid beeswax. It liquefies at some temp around 150 degrees.) Once the beeswax solidified in the Denon ring, it was quite effective in dampening any resonances. It may be my imagination at work, but I think this improves the neutrality of the sound. Of course, any dampening material that has some flexibility to it which would allow it to flow or to be pressed into the spaces in the ring could be used for this purpose.

 

RE: I like that...., posted on December 1, 2011 at 09:55:04
jimkjr
Audiophile

Posts: 41
Location: Mesa,AZ
Joined: August 30, 2005



Here is the entire system!

 

That reminds me of a couple of Denon plinths..., posted on December 1, 2011 at 11:47:18
EdAInWestOC
Audiophile

Posts: 6828
Location: Glen Burnie, MD USA
Joined: December 18, 2003
 But I'm sure your's is probably much more dense with the use of the baltic birch under the slate. You should have contacted Oswald's Mills Audio for the slate. They do beautiful slate work using a Pennsylvania blue hue slate that is finished using some high tech machinery of some nature. Its not cheap but those plinths are certainly beautiful.

IIRC Denon made a couple of series of tables based on the DP-1000 and DP-2000 motors. The tables were named something like the DP-1750 and/or DP-1780 (or substitute the 2xxx for the 1xxx for the 2000 series motor unit in the Denon plinth).

I'm pretty sure that that the 1750 came with a marble top and the other model came with a slate or lead top on the wooden plinth. I like the look of your table a lot and I'm sure she sings nicely.

Nice work,
Ed
Life is analog...digital is just samples thereof

 

So much for my memory..., posted on December 1, 2011 at 12:06:15
EdAInWestOC
Audiophile

Posts: 6828
Location: Glen Burnie, MD USA
Joined: December 18, 2003
 One of them was the DP-1800:


One was the DP-2800:


The DP-3000 in the same marble topped plinth:


I'm still trying to locate the lead/slate top plinth Denon that I saw somewhere...

Ed
Life is analog...digital is just samples thereof

 

Those three small brass screws..., posted on December 1, 2011 at 12:39:44
Lew
Audiophile

Posts: 11011
Location: Bethesda, Maryland
Joined: December 11, 2000
 arranged in a circle on the bottom of the motor assembly, if you remove those, does anything come apart? Apparently not, or Tubes would have been there/done that.

 

RE: So much for my memory..., posted on December 1, 2011 at 12:55:36
majick47
Audiophile

Posts: 799
Location: Pembroke MA
Joined: June 27, 2006
 Ed I'm in the same boat and I say the same thing, I know I saw it somewhere. Closest thing I remember is seeing a Japanese aftermarket lead top plinth on wood base for various Japanese turntables maybe on HiFiDo or Ebay. I'm useing a VPI HW-2 plinth/base that's constructed of three layers of steel seperated by two layers of a plastic material for the plinth on a walnut base that has springs in the four corners. So far it has worked very well in tameing resonance/vibration. The table is sitting on a large Target wall shelf and the sprung suspension isn't sensitive to movement.

 

RE: Beautiful job and many different features went into this one., posted on December 1, 2011 at 17:24:18
Lew
Audiophile

Posts: 11011
Location: Bethesda, Maryland
Joined: December 11, 2000
 To Jim and Hiatt
I think Jim's way is as recommended. Or to put it another way, the consensus of opinion seems to support the notion not to put anything compliant in between the two layers. Reason would be that you want to maximize energy transfer. A compliant layer would hurt that more than it would help anything else. I do know that for this reason the recommendation for building Garrard plinths is to eliminate the rubber gasket between the edge of the metal chassis and the top surface of the plinth.

 

RE: That reminds me of a couple of Denon plinths..., posted on December 1, 2011 at 17:47:50
jimkjr
Audiophile

Posts: 41
Location: Mesa,AZ
Joined: August 30, 2005
 For your info,Oswalds Mills does no do the work,they farm it out to another company,who I had talked with.

 

Thanks Lew. This must be the theory that Rega uses with their rigid tonearms?, posted on December 2, 2011 at 00:21:02
hiatt@alaska.net
Audiophile

Posts: 7738
Joined: December 9, 2000
Contributor
  Since: November 1, 2005
 nt

 

And, posted on December 2, 2011 at 11:20:44
Lew
Audiophile

Posts: 11011
Location: Bethesda, Maryland
Joined: December 11, 2000
 OMA use Pennsylvania slate which is available to anyone from a number of businesses located in areas of PA where there are quarries. Some of these businesses are also capable of cutting a slab to your exact specs and honing both sides to high levels of smoothness and parallel accuracy. They will even radius the corners if asked. There is no question, however, that the OMA products are quite beautifully finished, at least based on photos I see on their website.

 

The only 'lead' plinth I know of is the 'Lead Console', posted on December 11, 2011 at 14:00:32
travisty
Audiophile

Posts: 1368
Location: Tokyo
Joined: April 2, 2003
 made, IIRC, by Osaka Cable...

It was an aftermarket plinth with an aluminum outer frame, and a weird but very 'dead' material as the plinth material. It could very well have some lead in it but I do not know. It looks a bit like about an inch-thick slice of slight deadened linoleum. The thing is quite heavy.

 

RE: The only 'lead' plinth I know of is the 'Lead Console', posted on December 11, 2011 at 14:34:23
majick47
Audiophile

Posts: 799
Location: Pembroke MA
Joined: June 27, 2006
 A question re the DP-80 voltage, is it 100 or 120 or multi voltage. My DP-75 is multi voltage, I'v also seen the DP75 in 100/Japan. Do you use a stepdown converter? If useing a converter what make/model?

 

My Denons have all been 100V because..., posted on December 12, 2011 at 07:35:01
travisty
Audiophile

Posts: 1368
Location: Tokyo
Joined: April 2, 2003
 I lived in Japan until very recently. Every single one.

I have not needed a stepdown transformer.

The DP80 is found with a Denon-original stepdown transformer for use in the US, but it is a relatively rare beast. I do not know that the 30yr-old step-down is any better than a modern one.

I have used Japan-made/sourced Kashimura transformers to step-up and step-down voltage for other gear. They are surprisingly quiet for the ones which deal with 300W or less. The larger ones start to have minor hum, so you have to create a 'hum box' (I made a cardboard box cover which had foam inside and slots on the top, and then a kind of a buffer area on top to catch and 'point' the hum away. That way I got it silent). The Kashimura transformers are quite cheap (though the yen is quite strong, making them less cheap in USD terms).

 

RE: My Denons have all been 100V because..., posted on December 12, 2011 at 13:38:10
majick47
Audiophile

Posts: 799
Location: Pembroke MA
Joined: June 27, 2006
 Travis thanks for the update re the power requirements for the Denon DP-80. You confirmed my suspicion re the Denon DP-80 being Japan 100 volt and needing a stepdown transformer and as you say the Denon step down is a rare item and a new Kashimura will do just as well. Hopefully you were able to bring along all your wonderful turntables in the latest move.

 

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